1-Benzylpiperazine → 1-[3-(4-Fluorophenoxy)-1-azetidinylcarbonyl]-4-(phenylmethyl)piperazine

HRID 1886667

Reaktionsgleichung

Reaktionsgleichung von HRID 1886667
[F:1][C:2]1[CH:15]=[CH:14][C:5]([O:6][CH:7]2[CH2:10][N:9]([C:11](Cl)=[O:12])[CH2:8]2)=[CH:4][CH:3]=1.[CH2:16]([N:23]1[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]1)[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1>C(Cl)Cl.O>[F:1][C:2]1[CH:15]=[CH:14][C:5]([O:6][CH:7]2[CH2:10][N:9]([C:11]([N:26]3[CH2:27][CH2:28][N:23]([CH2:16][C:17]4[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=4)[CH2:24][CH2:25]3)=[O:12])[CH2:8]2)=[CH:4][CH:3]=1

Komponenten

5

Edukt 2

HCID 759941-BenzylpiperazineHCID 150533673-(4-Fluorophenoxy)-1-azetidinecarbonyl chloride

Produkt 1

HCID 150534051-[3-(4-Fluorophenoxy)-1-azetidinylcarbonyl]-4-(phenylmethyl)piperazineAusbeute 108,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A stirred solution of 6.9 g (0.03 mole) of 3-(4-fluorophenoxy)-1-azetidinecarbonyl chloride in 60 ml of methylene chloride was treated with 10.8 g (0.06 mole) of 1-benzylpiperazine, added dropwise. After stirring for 18 hr, the reaction mixture was diluted with 200 ml of water and stirred for an additional 1 hr. The methylene chloride portion was separated and the aqueous portion was extracted with 2×25 ml of methylene chloride. The methylene chloride portions were combined, dried and concentrated in vacuo, yielding 12 g of oil residue. This oil solidified when triturated with ligroin and was recrystallized from benzene/ligroin to yield 10.1 (91%) of tan crystals. A 500 mg portion was recrystallized from benzene/ligroin to yield 250 mg of fine white crystals, m.p. 109°-111° C.

Aufarbeitung

  1. additionadded dropwise
  2. stirringstirred for an additional 1 hr
  3. customThe methylene chloride portion was separated
  4. extractionthe aqueous portion was extracted with 2×25 ml of methylene chloride
  5. customdried
  6. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-e85d4c3b1910426fbbe4be17e1b79c9a
Quelldatensatz
uspto-grants-1992_09
Patentnummer
US05151418

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